Don't scrimp on the camera!!!
If you haven't already taken the pictures, take heed.
Spend the money on a good camera. I was in a fantasy situation in April (Hooters bikini contest and we had an in with one of the contestants) and scrimped on the single use camera. Saved about 3 bucks on an 8 dollar purchase.
Of course, none of the pictures were worth having. I REALLY REGRET saving that 3 bucks on the camera.
Can't help you with the developing though.
Adios